by Traverse Legal, reviewed by Molly Smith - November 12, 2025 - Business Law
You’ve worked with this vendor for years. The invoice looks familiar, and the email thread checks out. You authorize the wire transfer, only to realize later that the email was never from your vendor at all.
Business Email Compromise (BEC) is one of the fastest-growing forms of corporate fraud. Rather than hacking systems, attackers exploit trust by impersonating executives, vendors, or attorneys to manipulate legitimate transactions. BEC attackers don’t hack their way in; they pose as something you already trust.
Clearly, attackers don’t need malware or exploits anymore. Instead, they can simply bypass cybersecurity controls by exploiting human trust and email protocol gaps. The result? Wire fraud, data leaks, and legal exposure that can drag on for months.
This isn’t an IT problem, but an operational vulnerability masked as routine communication.
In 2024, BEC drove over $2.7 billion in reported losses, according to the FBI. That’s more than business identity theft, ransomware, and credit card fraud combined. The attack surface continues to grow because email remains the connective tissue of modern operations.
The real tell: 63% of professionals say they’ve dealt with a BEC attempt personally. This is no longer niche. It’s a structural risk embedded in day-to-day workflows. And most companies still treat it like spam.
These attacks follow patterns. We’ve seen them across regulatory investigations, recovery efforts, and litigation matters here at Traverse. Every tactic targets operational habits your team doesn’t question, familiar names, expected timing, and routine approvals. That’s where attackers hide. Here’s how they commonly unfold:
The attacker spoofs a founder, CFO, or board member, using lookalike domains or compromised inboxes. The message hits with urgency: “Wire this today,” or “Keep this quiet.” The recipient, for example, in finance or ops, may comply without verification, especially if the email looks familiar.
This isn’t amateur phishing. It’s engineered fraud designed to exploit hierarchy and routine. One urgent email, sent from the “CEO,” can trigger a seven-figure wire.
BEC actors rarely guess vendor names; they instead know the loopholes to infiltrate actual email threads. Once inside, they will study prior invoices, mimic tone, and then quietly insert new payment instructions without raising clear red flags. To the AP team, everything looks right, and with this, the attacker reroutes the funds and disappears.
This tactic exploits the gap between what accounting sees and what security enforces. Everything aligns, the invoice matches prior formats, and the message tone feels familiar. But the attacker embedded in the thread and silently altered the payment route. The vendor denies fault. The attacker disappears. And the client takes the loss.
HR departments are a prime target because they regularly handle both money and identity. Attackers can impersonate employees or HR leads to reroute direct deposit info. Worse, they request W-2s, Social Security numbers, or benefits data under the guise of onboarding or audits.
This fraud is a gateway to broader identity theft, tax fraud, and credential harvesting that hits employees long after the attack.
Legal tone carries weight. Fraudsters exploit that weight by posing as internal or external counsel. These messages often reference ongoing deals, regulatory reviews, or litigation deadlines and push for urgent disclosure of sensitive data.
The victim? Usually, someone who doesn’t want to slow down legally. So, they comply. The attackers vanish with trade secrets, PII, or unreleased financials.
Most security tools weren’t built to question familiarity. That’s exactly where BEC thrives.
BEC bypasses locks altogether. It blends in leveraging trusted names, convincing language, and active threads to avoid suspicion. Traditional defenses can’t detect a lie that looks true.
Old-school spam filters rely on patterns. But BEC emails don’t follow a spam pattern. AI-written phishing adapts to voice, timing, and business context. These emails read like real requests because they are.
Even sharp teams miss threats buried in a reply chain. If the attacker controls a real thread or inbox, they inherit the credibility of the conversation. Due diligence fails because the victim’s guard never goes up.
Most teams rely on MFA as a silver bullet. But when attackers steal credentials through lookalike pages, info-stealers, or intercepted 2FA codes, MFA collapses. If the attacker logs in first, it’s over.
You can’t filter your way out of a trust-based attack. You need systems that verify, segment, and monitor.
Generic phishing drills don’t cut it. Run simulations that reflect real tactics, such as thread hijacking or AI-written messages. Teach teams to detect when the familiar can turn hostile.
Use anomaly detection to flag unusual login times, off-hours invoice requests, and payment destination changes. The content may look normal, but the behavior won’t.
Hardwire your financial processes to require secondary, independent verification. No wire transfer should clear on email alone. Add voice, SMS, or system‑level authentication for every change in payee instructions.
Ditch SMS codes. Replace them with hardware tokens or biometric authenticators. These can’t be phished, spoofed, or reused by attackers even if passwords leak.
Enforce SPF, DKIM, and DMARC across all email systems. These protocols validate sender identity and block spoofing before it reaches your team. Without them, every message is a coin toss.
When BEC hits, most firms flinch, patch, and react. Traverse moves differently. We treat BEC not as an IT event, but as a multi-front legal and operational incident.
Our team doesn’t triage. We mobilize. Fast.
Our response starts where others hesitate with structured legal levers that recover funds, contain fallout, and lock down future exposure. We move across functions, not in silos.
Here’s what that looks like in practice:
When a BEC incident occurs, time and structure matter. Traverse Legal’s multidisciplinary team coordinates legal, financial, and operational responses, from fund recovery and regulatory disclosure to prevention strategies that strengthen internal controls. If your organization has been affected by a business email compromise, contact Traverse Legal to discuss next steps with experienced cyber and fraud response attorneys.
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As a founding partner of Traverse Legal, PLC, he has more than thirty years of experience as an attorney for both established companies and emerging start-ups. His extensive experience includes navigating technology law matters and complex litigation throughout the United States.
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This page has been written, edited, and reviewed by a team of legal writers following our comprehensive editorial guidelines. This page was approved by attorney Enrico Schaefer, who has more than 20 years of legal experience as a practicing Business, IP, and Technology Law litigation attorney.
